No, Acuity Insights Inc. (the company behind the Acuity Insights Assessments, including the Casper test) is not affiliated with any test preparation companies or private coaching services that offer Casper prep.
Acuity Insights does not offer any paid test prep or coaching services.
The only official practice resources are available through your Acuity Insights user account or on the acuityinsights.app website.
Best Way to Prepare? Use Our Official Resources
For the best preparation, we recommend using the free practice sessions and sample scenarios provided directly on the acuityinsights.app website.